u-boot/arch/sparc/include/asm/irq.h
Daniel Hellstrom f33f888d0e sparc: Added function that checks if IRQ is on or off
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
2015-12-03 13:15:48 +02:00

38 lines
819 B
C

/* IRQ functions
*
* (C) Copyright 2007
* Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __SPARC_IRQ_H__
#define __SPARC_IRQ_H__
#include <asm/psr.h>
/* Set SPARC Processor Interrupt Level */
static inline void set_pil(unsigned int level)
{
unsigned int psr = get_psr();
put_psr((psr & ~PSR_PIL) | ((level & 0xf) << PSR_PIL_OFS));
}
/* Get SPARC Processor Interrupt Level */
static inline unsigned int get_pil(void)
{
unsigned int psr = get_psr();
return (psr & PSR_PIL) >> PSR_PIL_OFS;
}
/* Disables interrupts and return current PIL value */
extern int intLock(void);
/* Sets the PIL to oldLevel */
extern void intUnlock(int oldLevel);
/* Return non-zero if interrupts are currently enabled */
extern int interrupt_is_enabled(void);
#endif